I have developed some projects using WCF and on deployments I face an error thrown by IIS7 saying “The page you are requesting cannot be served because of the extension configuration” with an more...

This error is really annoying and many of us face this quite oftenly. This may occur when you add a new item in Dropdown (with clientcode/ javascript) that is populated from server-side and postback occurs, binding a Grid and adding controls dynamically and clicking but my case more...